320D3

Medium Excavators 320D3

Request A Price Find Dealer

Key Specs

Net Power - ISO 9249
123 HP
92 kW
Operating Weight
46300 lb
21000 kg
Maximum Digging Depth
20.8 ft
6300 mm

Overview

LOWER YOUR COST PER TON

The Cat 320D3 Excavator balances productivity, efficiency and reliability to deliver you a reliable, highly efficient, low-cost-per-hour excavator for your work.

Benefits

Up to 10% Lower Fuel Consumption*

The latest Electro-Hydraulic (EH) system, Eco mode, and optional fuel consumption tracking in VisionLink® provide more control to optimize fuel consumption.

* Compared to the 320D3 model with prefix FKC. Fuel, CO2 emissions vary by application. Estimate fuel consumption improvements are based on engineering calculations and test data.

Robust Construction

Heavy duty front parts and structures plus two robust undercarriage options provide built-in durability and reliability on the jobsite. A proven 6-cylinder mechanical engine without an Electronic Control Module (ECM) enables simpler hydraulics.

Up to 15% Reduced Maintenance Costs**

Maximized uptime and extended service intervals, thanks to advanced hydraulic oil filter design and no pilot and case drain filters. A two-stage fuel filter and anti-rust fuel tank help protect the engine against low-quality fuel.

** Compared to 320D3 model prior to Annual Product Update 2021.

Product Specifications for 320D3

Net Power - ISO 9249 123 HP 92 kW
Net Power - ISO 9249 (DIN) 125 hp (metric) 125 hp (metric)
Engine Model ALUW06DTI ALUW06DTI
Engine Power - ISO 14396 134 HP 100 kW
Engine Power - ISO 14396 (DIN) 136 hp (metric) 136 hp (metric)
Bore 4 in 104 mm
Stroke 4 in 113 mm
Displacement 351 in³ 5.8 l
Biodiesel Capability Up to B10 Up to B10
Emissions Non-certified emission engine. Non-certified emission engine.
Note (1) Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system and alternator with engine speed at 1,700 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system and alternator with engine speed at 1,700 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Main System - Maximum Flow 429 l/min (113 gal/min) 429 l/min (113 gal/min)
Maximum Pressure - Equipment 5075 psi 35000 kPa
Maximum Pressure - Travel 5075 psi 35000 kPa
Maximum Pressure - Swing 3625 psi 25000 kPa
Swing Speed 11.88 r/min 11.88 r/min
Maximum Swing Torque 45581 ft·lbf 62 kN·m
Operating Weight 46300 lb 21000 kg
Note 4.3 m (13'11") Long undercarriage, 5.7 m (18'8") HD Reach boom, 2.5 m (8'2") HD Reach stick, 1.14 m³ (1.49 yd³) GD bucket, 600 mm (24") triple grouser shoes and 3650 kg (8,050 lb) counterweight. 4.3 m (13'11") Long undercarriage, 5.7 m (18'8") HD Reach boom, 2.5 m (8'2") HD Reach stick, 1.14 m³ (1.49 yd³) GD bucket, 600 mm (24") triple grouser shoes and 3650 kg (8,050 lb) counterweight.
Fuel Tank Capacity 92.5 gal (US) 350 l
Cooling System 5 gal (US) 19 l
Engine Oil 4.8 gal (US) 18 l
Swing Drive - Each 1.6 gal (US) 6 l
Final Drive - Each 1.3 gal (US) 5 l
Hydraulic System - Including Tank 57.6 gal (US) 218 l
Hydraulic Tank 30.4 gal (US) 115 l
Boom HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick HD Reach 2.5 m (8'2") HD Reach 2.5 m (8'2")
Bucket GD 1.14 m³ (1.49 yd³) GD 1.14 m³ (1.49 yd³)
Shipping Height - Top of Cab 10 ft 3050 mm
Handrail Height 9.11 ft 3015 mm
Shipping Length 31.3 ft 9530 mm
Tail Swing Radius 9 ft 2750 mm
Counterweight Clearance 3.4 ft 1020 mm
Ground Clearance 1.6 ft 450 mm
Track Length 13.11 ft 4250 mm
Length to Center of Rollers 11.3 ft 3450 mm
Track Gauge 7.1 ft 2380 mm
Transport Width 9.9 ft 2980 mm
Maximum Digging Depth 20.8 ft 6300 mm
Boom HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick HD Reach 2.5 m (8'2") HD Reach 2.5 m (8'2")
Bucket GD 1.14 m³ (1.49 yd³) GD 1.14 m³ (1.49 yd³)
Maximum Reach at Ground Level 31.1 ft 9470 mm
Maximum Cutting Height 30.4 ft 9250 mm
Maximum Loading Height 20.8 ft 6290 mm
Minimum Loading Height 8.6 ft 2590 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 19.7 ft 5960 mm
Maximum Vertical Wall Digging Depth 18.9 ft 5720 mm
Bucket Digging Force - ISO 30350 lbf 135 kN
Stick Digging Force - ISO 26530 lbf 118 kN

320D3 Standard Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

CAB

  • Sound suppressed cab with viscous mounts
  • High-resolution 203 mm (8") LCD touchscreen monitor
  • Mechanically adjustable seat with headrest
  • Automatic bi-level air conditioner
  • Keyless push-to-start engine control
  • 1-button joystick
  • AM/FM radio with USB and aux port
  • 24V DC outlet
  • Cup holder and storage compartments
  • 70/30 tempered glass windshield
  • Upper radial wiper with washer
  • Openable steel hatch
  • Dome light
  • Washable floor mat

CAT TECHNOLOGY

  • VisionLink®

ENGINE

  • Diesel engine, ALUW06DTI/8 - mechanical governor - emits equivalent to U.S. EPA Tier 2, not-certified
  • Two selectable power modes: Standard, Eco
  • One-touch low idle with auto engine speed control
  • Two stage fuel filtration system with water separator and indicator
  • 52°C (125° F) high-ambient cooling capacity
  • 4000 m (13,120 ft) altitude capability
  • Radial seal air filter with double filter element

HYDRAULIC SYSTEM

  • Electronic main control valve, hammer ready
  • Back-to-back electronic pump
  • Boom and stick regeneration circuits
  • Automatic hydraulic warm up
  • Automatic two-speed travel
  • High performance hydraulic return filter

BOOM AND STICK

  • 5.7 m (18'8") HD Reach boom
  • 2.5 m (8'2") HD Reach stick

UNDERCARRIAGE and STRUCTURES

  • 600 mm (24 in) triple grouser shoes (10 mm/0.4 in thick)
  • Grease lubricated track links
  • Tie down points on base frame
  • Center track guiding guard
  • Segmented track guiding guard
  • 3650 kg (8,050 lb) counterweight

ELECTRICAL SYSTEM

  • Two 750 CCA maintenance free batteries
  • LED chassis and cab lights
  • LED left-side boom light

SERVICE AND MAINTENANCE

  • Grouped engine oil, fuel, and hydraulic oil filters
  • Sampling ports for Scheduled Oil Sampling (S.O.S)
  • Radiator screen for radiator/oil cooler

SAFETY AND SECURITY

  • Anti-skid plating with countersunk bolts
  • Handrail and handhold
  • Lockable external tool/storage box
  • Signaling/warning horn
  • Hydraulic lockout lever

320D3 Optional Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

ENGINE

  • -32° C (-25° F) cold start capability
  • Air precleaner
  • Fuel flow meter

HYDRAULIC SYSTEM

  • Hammer lines
  • Hammer return filter

UNDERCARRIAGE and STRUCTURES

  • 4250 mm (13'11") long undercarriage
  • 4080 mm (13'5") standard undercarriage

ELECTRICAL

  • LED right-side boom light

SAFETY AND SECURITY

  • Rollover Protective Structure (ROPS)
  • Operator Protective Guards (OPG) with matching lights with matching lights
  • Rearview camera
  • Travel alarm

See how 320D3 compares against frequently compared products.

Product Brochures and More Are Ready to Download!

Media Gallery

320D3 Medium Hydraulic Excavator

320D3 Medium Hydraulic Excavator

320D3 Medium Hydraulic Excavator

320D3 Medium Hydraulic Excavator

320D3 Medium Hydraulic Excavator

320D3 Medium Hydraulic Excavator

320D3 Medium Hydraulic Excavator

320D3 Medium Hydraulic Excavator

320D3 Medium Hydraulic Excavator
320D3 Medium Hydraulic Excavator
320D3 Medium Hydraulic Excavator
320D3 Medium Hydraulic Excavator
320D3 Medium Hydraulic Excavator
320D3 Medium Hydraulic Excavator
320D3 Medium Hydraulic Excavator
320D3 Medium Hydraulic Excavator

Cat 320D3 / 323D3 Hydraulic Excavators Video

Cat Excavator 320D3 at work - social media clip

Cat 320D3 / 323D3 Hydraulic Excavators Video
Cat Excavator 320D3 at work - social media clip

360 View
360 View

Take the interactive virtual product tour to explore the great features and benefits of the 320D3

Start 320D3 Tour
close

Check out current offers for the 320D3

View More Offers